Abstract : this paper reports the observation and analysis results on three kinds of impurity in - al2o3 by using epma - eds . we studied the differences of electric conductivity between the area containing inmpurity and the normal area by ion transport method . the effects of impurity in - al2o3 on cycle life of the na - s cell were also discussed 文摘:用epma - eds组合仪，对氧化铝中的三种典型杂质进行了形貌观察和成分分析，并用电子束诱导离子迁移法，研究了杂质区及正常区的离子电导差异，讨论了不同杂质的特点及对氧化铝作用中的危害。
